<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!-- saved from url=(0163)https://mooc1.chaoxing.com/mooc2/work/view?courseId=218839436&classId=48570730&cpi=210965704&workId=16965439&answerId=50693613&enc=7d1f6e38d886c0c3d490d825c8bf949b -->
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>作业详情</title>
<link rel="stylesheet" type="text/css" href="./作业详情_files/pop.css">
<link rel="stylesheet" type="text/css" href="./作业详情_files/common.css">
<link rel="stylesheet" type="text/css" href="./作业详情_files/marking_icon.css">
<link rel="stylesheet" type="text/css" href="./作业详情_files/viewStudent.css">
<link rel="stylesheet" type="text/css" href="./作业详情_files/taskStudent_pop.css">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">

<script type="text/javascript" src="./作业详情_files/jquery.min.js.下载"></script>
<script type="text/javascript" src="./作业详情_files/jquery-migrate.min.js.下载"></script><script type="text/javascript" src="./作业详情_files/jquery.nicescroll.min.js.下载"></script>
<script type="text/javascript" src="./作业详情_files/pop.js.下载"></script>
<script type="text/javascript" src="./作业详情_files/poplayout.js.下载"></script>
<script type="text/javascript" src="./作业详情_files/viewStudent.js.下载"></script>
<script src="./作业详情_files/attach-mark.js.下载"></script>
<style>
.questionLi img{max-width:100%;}
</style><style>.clearfix:after{content: " ";display: block;height: 0px;clear: both;}

.classp{
	float:left;

}
</style></head>

<body style="zoom: 1; background: transparent;">
<script src="./作业详情_files/preview-attach.js.下载" class="clearfix"></script><link href="./作业详情_files/viewer.min.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="./作业详情_files/jquery.md5.js.下载"></script>
<script type="text/javascript" src="./作业详情_files/viewer-jquery.min.js.下载"></script>
<script type="text/javascript">
try{
	$(function(){
		var imgList = $(".TiMu").find("div img:not(.workAttach img, .attach img, .attachNew img, .stuAnswerArea img, .popClose img, .ans-formula-moudle)");
		for (var i = 0, len = imgList.size(); i < len; i++) {
			 var src = imgList.eq(i).attr("src");
			 if(src){
    			var index = src.indexOf("375_1024");
    			if (index != -1) {
    				src = src.replace("375_1024", "origin");
    			}
                 var index2 = src.indexOf("750_1024");
                 if (index2 != -1) {
                     src = src.replace("750_1024", "origin");
                 }
    			imgList.eq(i).attr("data-original", src);
		   }
		}
        $(".TiMu").find("div img:not(.workAttach img, .attach img, .attachNew img, .stuAnswerArea img, .popClose img)").viewer({
			url : 'data-original',
		});

        //开始写============================
        $(".mark_table .mark_item").find('.questionLi').each(function(i){

			$(this).prepend("<form class='foo"+i+"' onclick='handler("+i+")'></form>");
			$(this).find(".mark_letter").prependTo(".foo"+i)
			$(this).find("h3").prependTo(".foo"+i)
			$(this).find(".mark_answer").appendTo(".foo"+i)


        	$(this).find('.mark_letter li').each(function(){
        		$(this).prepend("<input class='calssp' name='Fruit' type='radio' value='' />");
        	});
        });

		$(".mark_answer").css({"display": "none"});
		$("span:contains('我的答案:')").remove();
	

	})
	function handler(i){
		$(".foo"+i).find(".mark_answer").css({"display": "block"})
		console.log(i)
	}
  }catch(error){}

</script>
<input type="hidden" id="courseId" value="218839436">
<input type="hidden" id="classId" value="48570730">
<input type="hidden" id="cpi" value="210965704">
<input type="hidden" id="workId" value="16965439">
<input type="hidden" id="answerId" value="50693613">
<input type="hidden" id="enc" value="7d1f6e38d886c0c3d490d825c8bf949b">
<input type="hidden" id="creatorId" value="210965704">
<div class="subNav">作业详情</div>
<div class="het40"></div>
<div class="fanyaMarking TiMu" id="fanyaMarking">
	<div class="fanyaMarking_left whiteBg">
		<div class="borderBom padBom20 detailsHead">
			<div style="padding: 50px 20px !important;">
				<ul class="nav navbar-nav">
		            <li class="active"><a href="./第一章作业2021.htm">第一章作业</a></li>
		            <li><a href="./第二章作业2021.html">第二章SQL语言作业</a></li>
		            <li><a href="./第三章SQL语言作业2021.html">第三章SQL语言作业</a></li>
       		 	</ul>
			</div>
			<h2 class="mark_title">第一章作业－2021</h2>
			<div class="infoHead">
				<span>题量: 30</span>
				<span>满分: 100</span>
				<p class="rightBord">作答时间:<em>11-27 12:34</em>至<em>12-02 22:00</em></p>
							</div>
							<span class="resultNum"><i>100</i>分</span>
					</div>
				
				
							<div class="mark_table padTop60">
													
																						
					
																					
					<div class="mark_item">
						                            <h2 class="type_tit">一. 单选题（共10题，33分）</h2>
																			
																												<div class="marBom60 questionLi" id="question401616850" data="401616850">
								<h3 class="mark_name colorDeep">1. <span class="colorShallow">(单选题)</span>数据库系统的核心和基础是()</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     物理模型 </li>
																													<li>B.     概念模型 </li>
																																							<li>C.     数据模型 </li>
																													<li>D.     逻辑模型 </li>
																		</ul>
									
																	<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> C</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> C</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616851" data="401616851">
								<h3 class="mark_name colorDeep">2. <span class="colorShallow">(单选题)</span>实现将现实世界抽象为信息世界的是()</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     物理模型 </li>
																																							<li>B.     概念模型 </li>
																													<li>C.     数据模型 </li>
																													<li>D.     逻辑模型 </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> B</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> B</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616852" data="401616852">
								<h3 class="mark_name colorDeep">3. <span class="colorShallow">(单选题)</span>数据管理技术经历了若干阶段,其中人工管理阶段和文件系统阶段相比文件系统的个显著优势是()</h3>
																	<ul class="mark_letter colorDeep">
																																							<li>A. &nbsp; &nbsp;数据可以长期保存</li>
																													<li>B. &nbsp; &nbsp;数据独立性很好</li>
																													<li>C. &nbsp; &nbsp;数据共享性强</li>
																													<li>D. &nbsp; &nbsp;数据整体结构化</li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> A</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> A</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>  </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616853" data="401616853">
								<h3 class="mark_name colorDeep">4. <span class="colorShallow">(单选题)</span>能够保证数据库系统中的数据具有较高的逻辑独立性的是()</h3>
																	<ul class="mark_letter colorDeep">
																																							<li>A.     外模式/模式映像 </li>
																													<li>B.     模式 </li>
																													<li>C.     模式/内模式映像 </li>
																													<li>D.     外模式 </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> A</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> A</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616854" data="401616854">
								<h3 class="mark_name colorDeep">5. <span class="colorShallow">(单选题)</span>以下哪个不是关系数据库的特点</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     数据结构化 </li>
																																							<li>B.     高冗余 </li>
																													<li>C.     数据理性好 </li>
																													<li>D.     由数据库管理系统统一管理和控制 </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> B</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> B</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616855" data="401616855">
								<h3 class="mark_name colorDeep">6. <span class="colorShallow">(单选题)</span>DBMS是一类系统软件,它是建立在下列哪种系统之上的?()</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     应用系统 </li>
																													<li>B.     编译系统 </li>
																																							<li>C.     操作系统 </li>
																													<li>D.     硬件系统 </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> C</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> C</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616856" data="401616856">
								<h3 class="mark_name colorDeep">7. <span class="colorShallow">(单选题)</span>关于网状数据库,以下说法正确的是()</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     只有一个结点可以无双亲 </li>
																													<li>B.     每个结点有且只有一个双亲 </li>
																													<li>C.     两个结点之间只能有一种联系 </li>
																																							<li>D.     一个结点可以有多于一个的双亲 </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> D</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> D</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616857" data="401616857">
								<h3 class="mark_name colorDeep">8. <span class="colorShallow">(单选题)</span>下列说法中,正确的是()</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     数据库的概念模型与具体的DBMS有关 </li>
																													<li>B.     三级模式中描述全体数据的逻辑结构和特征的是外模式 </li>
																													<li>C.     数据库管理员负责设计和编写应用系统的程序模块 </li>
																																							<li>D.     从逻辑模型到物理模型的转换一般是由DBMS完成的 </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> D</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> D</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616858" data="401616858">
								<h3 class="mark_name colorDeep">9. <span class="colorShallow">(单选题)</span>长期存储在计算机内,有组织的、可共享的大量数据的集合是()</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A.     数据(Data) </li>
																																							<li>B.     数据库(DataBase) </li>
																													<li>C.     数据库管理系统(DBMS) </li>
																													<li>D.     数据库系统(DBS) </li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> B</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> B</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616859" data="401616859">
								<h3 class="mark_name colorDeep">10. <span class="colorShallow">(单选题)</span>在数据管理技术发展过程中,有专门管理数据的软件的是(&nbsp; &nbsp; &nbsp; &nbsp;)。</h3>
																	<ul class="mark_letter colorDeep">
																													<li>A. 人工管理阶段</li>
																													<li>B. 人工管理阶段和文件系统阶段</li>
																																							<li>C. 文件系统阶段和数据库系统阶段</li>
																													<li>D. 数据库系统阶段</li>
																		</ul>
									
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> C</span>
																						<span class="colorGreen marginRight40 fl"><i class="fontWeight">正确答案:</i> C</span>
																					</div>
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																										<span class="marking_dui"></span>
																									</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>    </div>
										</div>
										
									</div>

															</div>
											</div>
									
																						
					
																					
					<div class="mark_item">
						                            <h2 class="type_tit">二. 填空题（共10题，33分）</h2>
																			
																												<div class="marBom60 questionLi" id="question401616860" data="401616860">
								<h3 class="mark_name colorDeep">11. <span class="colorShallow">(填空题)</span>数据库系统的逻辑模型按照计算机的观点对数据建模,主要包括 层次模型、网状模型&nbsp;、（） 和面向对象模型、对象关系模型和半结构化数据模型等。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616860">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 关系模型</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 关系模型</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>  </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616861" data="401616861">
								<h3 class="mark_name colorDeep">12. <span class="colorShallow">(填空题)</span>概念模型常用（&nbsp; &nbsp; &nbsp; &nbsp;）来表示。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616861">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) ER图</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) E-R图；E-R；ER图；ER；E-R模型；E-R；ER模型；实体联系模型；实体-联系模型；实体联系图；实体-联系图</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>    </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616862" data="401616862">
								<h3 class="mark_name colorDeep">13. <span class="colorShallow">(填空题)</span>数据独立性是数据库领域的重要概念,包括数据的________独立性和物理独立性。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616862">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 逻辑</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 逻辑</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>    </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616863" data="401616863">
								<h3 class="mark_name colorDeep">14. <span class="colorShallow">(填空题)</span>数据库系统的三级模式结构是指数据库系统是由外模式 、( &nbsp; ) 和内模式三级构成。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616863">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 模式</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 模式</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>  </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616864" data="401616864">
								<h3 class="mark_name colorDeep">15. <span class="colorShallow">(填空题)</span>两个实体型之间的联系可以分为三种:一对一联系、一对多联系 和_______ 。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616864">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 多对多联系</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 多对多联系;多对多;m:n;n:m</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>  </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616865" data="401616865">
								<h3 class="mark_name colorDeep">16. <span class="colorShallow">(填空题)</span>数据库管理系统提供的数据控制方面的功能包括数据的（&nbsp; &nbsp; &nbsp; ） 保护、完整性检查、并发控制和数据库恢复。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616865">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 安全性</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 安全性；安全</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>    </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616866" data="401616866">
								<h3 class="mark_name colorDeep">17. <span class="colorShallow">(填空题)</span>数据库的三级模式结构中,描述局部数据的逻辑结构和特征的是（&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;） 。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616866">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 外模式</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 外模式；子模式；用户模式；应用模式</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>    </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616867" data="401616867">
								<h3 class="mark_name colorDeep">18. <span class="colorShallow">(填空题)</span>实体是指客观存在,并可相互区别的（） 。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616867">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 事物</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 事物;客观事物</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>  </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616868" data="401616868">
								<h3 class="mark_name colorDeep">19. <span class="colorShallow">(填空题)</span>三类完整性是指（&nbsp; &nbsp; &nbsp;）、<span style="text-decoration: underline;">（&nbsp; &nbsp; &nbsp;）&nbsp;</span>和 （&nbsp; &nbsp; ）。</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616868">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 实体完整性</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																																							
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(2) 参照完整性</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																																							
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(3) 自定义完整性</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1) 实体完整性</dd>
		    																																																				<dd>(2) 参照完整性</dd>
		    																																																				<dd>(3) 自定义完整性；用户定义完整性；用户定义的完整性</dd>
		    																																	</dl>
																					</div>

																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>    </div>
										</div>
										
									</div>

															</div>
													
																												<div class="marBom60 questionLi" id="question401616869" data="401616869">
								<h3 class="mark_name colorDeep">20. <span class="colorShallow">(填空题)</span>数据模型的组成要素中描述系统的静态特性和动态特性的分别是</h3>
																	<div class="mark_answer" style="width:760px;">
										<div>
											<dl class="mark_fill colorDeep" id="qb401616869">
												<dt class="positionStyle">
													<i class="fontWeight">我的答案：</i>
																										<div class="mark_score">
														<div class=" fl catalog_tishi80">
															<div class="mark_judge_name"></div>
														</div>
														<div class="totalScore fr"><i>3.3</i>分</div>
													</div>
																									</dt>
																																																																			
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(1) 数据结构</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																																							
														<dd>
															<span class="answer_span" style="display:inline-block;width:94%;">(2) 数据操作</span>
																																															                                                                <span class="marking_dui"></span>
																																																												</dd>
																																				</dl>
											
																						<dl class="mark_fill colorGreen">
												<dt><i class="fontWeight">正确答案：</i></dt>
														    																																																				<dd>(1)     数据结构 </dd>
		    																																																				<dd>(2)     数据操作 </dd>
		    																																	</dl>
																					</div>

										
									</div>

															</div>
											</div>
									
																						
					
																					
					<div class="mark_item">
						                            <h2 class="type_tit">三. 判断题（共10题，34分）</h2>
																			
																												<div class="marBom60 questionLi" id="question401616870" data="401616870">
								<h3 class="mark_name colorDeep">21. <span class="colorShallow">(判断题)</span>在文件系统管理阶段,由文件系统提供数据存取方法,所以数据已经达到很强的独立性。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 错</span>
																						<span class="colorGreen marginRight40 fl">
																											            										        										<i class="fontWeight">正确答案:</i> 错
		            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616871" data="401616871">
								<h3 class="mark_name colorDeep">22. <span class="colorShallow">(判断题)</span>通常情况下,外模式是模式的子集。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 对</span>
																						<span class="colorGreen marginRight40 fl">
																											        										<i class="fontWeight">正确答案:</i> 对
		            										            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616872" data="401616872">
								<h3 class="mark_name colorDeep">23. <span class="colorShallow">(判断题)</span>数据库管理系统是指在计算机系统中引入数据库后的系统,一般由DB、DBS、应用系统和DBA组成。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 错</span>
																						<span class="colorGreen marginRight40 fl">
																											            										        										<i class="fontWeight">正确答案:</i> 错
		            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616873" data="401616873">
								<h3 class="mark_name colorDeep">24. <span class="colorShallow">(判断题)</span>在数据模型的组成要素中,数据结构是刻画一个数据模型性质最重要的方面,人们通常按照数据结构的类型来命名数据模型。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 对</span>
																						<span class="colorGreen marginRight40 fl">
																											        										<i class="fontWeight">正确答案:</i> 对
		            										            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616874" data="401616874">
								<h3 class="mark_name colorDeep">25. <span class="colorShallow">(判断题)</span>数据库系统的三级模式是对数据进行抽象的3个级别,把数据的具体组织留给DBMS管理。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 对</span>
																						<span class="colorGreen marginRight40 fl">
																											        										<i class="fontWeight">正确答案:</i> 对
		            										            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616875" data="401616875">
								<h3 class="mark_name colorDeep">26. <span class="colorShallow">(判断题)</span>层次模型是比网状模型更具普遍性的结构,网状模型是层次模型的一个特例。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 错</span>
																						<span class="colorGreen marginRight40 fl">
																											            										        										<i class="fontWeight">正确答案:</i> 错
		            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616876" data="401616876">
								<h3 class="mark_name colorDeep">27. <span class="colorShallow">(判断题)</span>主码是指从一个或多个码中选其中一个。</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 对</span>
																						<span class="colorGreen marginRight40 fl">
																											        										<i class="fontWeight">正确答案:</i> 对
		            										            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
																				<div class="analysisDiv">
											<div class="analysis"><i>答案解析：</i>  </div>
										</div>
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616877" data="401616877">
								<h3 class="mark_name colorDeep">28. <span class="colorShallow">(判断题)</span>视图和三级模式中的模式对应</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 错</span>
																						<span class="colorGreen marginRight40 fl">
																											            										        										<i class="fontWeight">正确答案:</i> 错
		            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616878" data="401616878">
								<h3 class="mark_name colorDeep">29. <span class="colorShallow">(判断题)</span>MySql是数据库管理系统</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 对</span>
																						<span class="colorGreen marginRight40 fl">
																											        										<i class="fontWeight">正确答案:</i> 对
		            										            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>3.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
													
																												<div class="marBom60 questionLi" id="question401616879" data="401616879">
								<h3 class="mark_name colorDeep">30. <span class="colorShallow">(判断题)</span>数据的冗余和数据共享相互对应,冗余低,共享就差</h3>
																	<ul class="mark_letter colorDeep">
										<li>A. 对</li>
										<li>B. 错</li>
									</ul>
									<div class="mark_answer">
										<div class="mark_key clearfix">
											<span class="colorDeep marginRight40 fl"><i class="fontWeight">我的答案:</i> 错</span>
																						<span class="colorGreen marginRight40 fl">
																											            										        										<i class="fontWeight">正确答案:</i> 错
		            																															</span>
																					</div>
										
										<div class="mark_score">
											<div class=" fl catalog_tishi80">
																								<div class="mark_judge_name">
																    									<span class="marking_dui"></span>
			    																					</div>
																							</div>
																						<div class="totalScore fr"><i>4.3</i>分</div>
																					</div>
										
										
									</div>
								
															</div>
											</div>
							</div>
			</div>
	
		<div class="fanyaMarking_right" id="rightHeight" style="max-height: 576px; top: 70px;">
		<div class="topicNumber" id="topicNumberScroll" style="max-height: 496px; overflow: hidden; outline: none;" tabindex="1">
												
																										
						
																				
                        <div class="topicNumber_checkbox colorDeep fs14">
														一. 单选题（33分）                        </div>
                        <ul class="topicNumber_list clearfix">
							                                <li id="answerSheet401616850" data="401616850" class="active current">1</li>
							                                <li id="answerSheet401616851" data="401616851" class="active">2</li>
							                                <li id="answerSheet401616852" data="401616852" class="active">3</li>
							                                <li id="answerSheet401616853" data="401616853" class="active">4</li>
							                                <li id="answerSheet401616854" data="401616854" class="active">5</li>
							                                <li id="answerSheet401616855" data="401616855" class="active">6</li>
							                                <li id="answerSheet401616856" data="401616856" class="active">7</li>
							                                <li id="answerSheet401616857" data="401616857" class="active">8</li>
							                                <li id="answerSheet401616858" data="401616858" class="active">9</li>
							                                <li id="answerSheet401616859" data="401616859" class="active">10</li>
							                        </ul>
					
																										
						
																				
                        <div class="topicNumber_checkbox colorDeep fs14">
														二. 填空题（33分）                        </div>
                        <ul class="topicNumber_list clearfix">
							                                <li id="answerSheet401616860" data="401616860" class="active">11</li>
							                                <li id="answerSheet401616861" data="401616861" class="active">12</li>
							                                <li id="answerSheet401616862" data="401616862" class="active">13</li>
							                                <li id="answerSheet401616863" data="401616863" class="active">14</li>
							                                <li id="answerSheet401616864" data="401616864" class="active">15</li>
							                                <li id="answerSheet401616865" data="401616865" class="active">16</li>
							                                <li id="answerSheet401616866" data="401616866" class="active">17</li>
							                                <li id="answerSheet401616867" data="401616867" class="active">18</li>
							                                <li id="answerSheet401616868" data="401616868" class="active">19</li>
							                                <li id="answerSheet401616869" data="401616869" class="active">20</li>
							                        </ul>
					
																										
						
																				
                        <div class="topicNumber_checkbox colorDeep fs14">
														三. 判断题（34分）                        </div>
                        <ul class="topicNumber_list clearfix">
							                                <li id="answerSheet401616870" data="401616870" class="active">21</li>
							                                <li id="answerSheet401616871" data="401616871" class="active">22</li>
							                                <li id="answerSheet401616872" data="401616872" class="active">23</li>
							                                <li id="answerSheet401616873" data="401616873" class="active">24</li>
							                                <li id="answerSheet401616874" data="401616874" class="active">25</li>
							                                <li id="answerSheet401616875" data="401616875" class="active">26</li>
							                                <li id="answerSheet401616876" data="401616876" class="active">27</li>
							                                <li id="answerSheet401616877" data="401616877" class="active">28</li>
							                                <li id="answerSheet401616878" data="401616878" class="active">29</li>
							                                <li id="answerSheet401616879" data="401616879" class="active">30</li>
							                        </ul>
														</div>
	<div id="ascrail2000" class="nicescroll-rails nicescroll-rails-vr" style="width: 8px; z-index: auto; cursor: default; position: absolute; top: 0px; left: 272px; height: 496px; display: block; opacity: 0;"><div class="nicescroll-cursors" style="position: relative; top: 0px; float: right; width: 8px; height: 488px; background-color: rgb(230, 236, 245); background-clip: padding-box; border-radius: 5px;"></div></div><div id="ascrail2000-hr" class="nicescroll-rails nicescroll-rails-hr" style="height: 8px; z-index: auto; top: 488px; left: 0px; position: absolute; cursor: default; display: none; width: 272px; opacity: 0;"><div class="nicescroll-cursors" style="position: absolute; top: 0px; height: 8px; width: 280px; background-color: rgb(230, 236, 245); background-clip: padding-box; border-radius: 5px; left: 0px;"></div></div></div>
	</div>

<div class="maskDiv popMoveShowHide" style="display:none;" id="recordList">
	<div class="popDiv wid640 popMove">
		<div class="popHead">
			<a href="javascript:;" onclick="closeAnswers();" class="popClose popMoveDele fr"><img src="./作业详情_files/popClose.png"></a>
			<p class="fl fs18 colorDeep">作答记录</p>
		</div>
		<div class="het62"></div>
				<div id="content"></div>
	</div>			
</div>

<link rel="stylesheet" type="text/css" href="./作业详情_files/prompt.css">
<style>
	.mask-no-bg{background:none!important;}
	.mask-no-bg .popDiv{box-shadow: 0px 4px 36px rgba(0, 0, 0, 0.08);}
</style>
<div class="maskDiv" style="display:none;" id="workpop">
	<div class="popDiv wid440 Marking">
		<div class="popHead">
			<a href="javascript:;" class="popClose fr" onclick="$(&#39;#workpop&#39;).hide();$(&#39;.popSetupShowHide&#39;).fullFadeOut();"><img src="./作业详情_files/popClose(1).png"></a>
			<p class="fl fs18 colorDeep">提示</p>
		</div>
		<div class="het62"></div>
		<p class="popWord fs16 colorIn" id="popcontent"></p>

		<div class="popBottom">
			<a href="javascript:;" id="popok" class="jb_btn jb_btn_92 fr fs14"></a>
			<a href="javascript:;" id="popno" class="btnBlue btn_92_cancel fr fs14"></a>
		</div>
		<div class="het72"></div>
	</div>
</div>

<div class="mask-no-bg" style="display:none;" id="worktoast">
	<div class="popDiv wid440 Marking" style="top: 30%;">
		<div class="popHead">
			<a href="javascript:;" class="popClose fr" onclick="$(&#39;#worktoast&#39;).hide();$(&#39;.popSetupShowHide&#39;).fullFadeOut();"><img src="./作业详情_files/popClose(1).png"></a>
			<p class="fl fs18 colorDeep">提示</p>
		</div>
		<div class="het62"></div>
		<p class="popWord fs16 colorIn" id="toastcontent"></p>

		<div class="popBottom">
			<a href="javascript:;" id="toastok" class="jb_btn jb_btn_92 fr fs14"></a>
			<a href="javascript:;" id="toastno" class="btnBlue btn_92_cancel fr fs14"></a>
		</div>
		<div class="het72"></div>
	</div>
</div>

<script>

function workPop(content, okTent, cancelTent, okcallback, cancelCallback) {
	var ta = $("#workpop");

	$(".popSetupShowHide").fullFadeIn();
	ta.show();
	
	$("#popcontent").html(content);

	var ok = $("#popok");
	ok.html(okTent);
	ok.unbind();
	ok.on("click", function() {
		okcallback && okcallback(ta);
		ta.hide();
		$(".popSetupShowHide").fullFadeOut();
	});

	var cancel = $("#popno");
	cancel.html(cancelTent);
	cancel.unbind();
	cancel.on("click", function() {
		cancelCallback && cancelCallback(ta);
		ta.hide();
		$(".popSetupShowHide").fullFadeOut();
	});
}

function workToast(content, okTent, cancelTent, okcallback, cancelCallback) {
	var ta = $("#worktoast");

	$(".popSetupShowHide").fullFadeIn();
	ta.show();

	$("#toastcontent").html(content);

	var ok = $("#toastok");
	ok.html(okTent);
	ok.unbind();
	ok.on("click", function() {
		okcallback && okcallback(ta);
		ta.hide();
		$(".popSetupShowHide").fullFadeOut();
	});

	var cancel = $("#toastno");
	cancel.html(cancelTent);
	cancel.unbind();
	cancel.on("click", function() {
		cancelCallback && cancelCallback(ta);
		ta.hide();
		$(".popSetupShowHide").fullFadeOut();
	});
}

</script><script>

var courseId = $("#courseId").val();
var classId = $("#classId").val();
var cpi = $("#cpi").val();
var workId = $("#workId").val();
var answerId = $("#answerId").val();
var enc = $("#enc").val();

function redoWork() {
	
	var redoTimes = 0 + 0 - 0;
	var msg = "你还可以重做" + redoTimes + "次，确认重做后，前一次作答记录会被覆盖，作业成绩以本次成绩为最终成绩，是否继续？";
	
	workPop(msg, "重做", "取消", function() {
		$.ajax({
			type : "get",
			url : "/work/phone/redo",
			dataType : "json",
			data : {
				courseId : courseId,
				classId : classId,
				cpi : cpi,
				workId : workId,
				workAnswerId : answerId
			},
			success : function(data) {
				if(data.status == 1) {
					location.href = "/mooc2/work/dowork?courseId=218839436&classId=48570730&cpi=210965704&workId=16965439&answerId=50693613&knowledgeId=&jobid=&standardEnc=aa2096e560bd5990d344580486ec3ea7&enc=7d1f6e38d886c0c3d490d825c8bf949b";
				} else {
					$.toast({
						type : 'failure',
						content : data.msg
					});
				}
			}
		});
	});
}

var recordLock = 0
function answerList() {
	if(recordLock == 1) {
		return;
	}
	recordLock = 1;
	
	$.ajax({
		type : "get",
		url : "/mooc2/work/answer-list",
		dataType : "html",
		data : {
			courseId : courseId,
			classId : classId,
			cpi : cpi,
			workId : workId,
			answerId : answerId,
			enc : enc
		},
		success : function(data) {
			$("#content").html(data);
			$("#recordList").show();
			MoveFixed();
		}
	});
}

function closeAnswers() {
	$("#recordList").hide();
	recordLock = 0;
}

function showAnswer(selectTimes) {
	var url = "/mooc2/work/view?courseId=218839436&classId=48570730&cpi=210965704&workId=16965439&answerId=50693613&enc=7d1f6e38d886c0c3d490d825c8bf949b&selectTimes=" + selectTimes;
	window.open(url);
}

function MoveFixed() {
	$('.popMove').css({
		top : function() {
			return ($(window).height() - $(this).height()) / 2;
		},
		left : function() {
			return ($(window).width() - $(this).width()) / 2;
		}
	});
	
	$("#boxscroll").niceScroll({
		cursorborder : "",
		cursorcolor : "#D9DDE1",
		boxzoom : false
	});
}

</script>


</body></html>